1 Features

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, T_A
General operation
- 4.5V to 19V supply voltage, 40V load dump
- Low latency path reducing group delay by >70% at 48kHz
- Support for 1.8V and 3.3V I/Os
- I²C control with 8 address options
1L Modulation
- Requires only one inductor per channel saving four inductors versus a traditional design
- Lower system component cost for inductors
- Smaller PCB footprint
Audio Performance
- THD+N 0.02% (4Ω, 1W, 1kHz)
- Output noise: 35µV_RMS at 14.4V, A-weighting
- Efficiency > 90% at 4 × 25W, 4Ω, 14.4V
Output current sensing by channel via I²S/TDM
- No external circuitry needed
Real-time load diagnostics
- Monitor output conditions while playing audio
- Open Load, Shorted load, Short-to-power, and Short-to-ground detection
DC and AC Standby load diagnostics
Audio inputs
- 2-4 channel I²S or 4-16 channel TDM input
- Input sample rates: 44.1, 48, 96, 192kHz
Audio outputs
- 4 channel bridge-tied load (BTL), configurable 2 channel parallel-BTL (PBTL)
- 2MHz output switching frequency
- 4 × 30W (4Ω, 14.4V, 1kHz, 10% THD+N)
- 4 × 52W (2Ω, 14.4V, 1kHz, 10% THD+N)
Advanced spread-spectrum and selectable phase offset
Protection and monitoring
- Cycle-by-cycle current limiting
- Output short protection
- Clip detection with configurable thresholds
- Thermal foldback and PVDD foldback
- I²C temperature and supply voltage readout
- Configurable overtemperature warning and individual channel shutdown
- DC offset, undervoltage and overvoltage